| 聚酯粉末涂料紫外光人工加速老化过程的研究 |
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| 引用本文： | 马志平,谢静,刘亮,李勇. 聚酯粉末涂料紫外光人工加速老化过程的研究[J]. 涂料工业, 2018, 48(4): 52-57. DOI: 10.12020/j.issn.0253-4312.2018.4.52 |
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| 作者姓名： | 马志平 谢静 刘亮 李勇 |
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| 作者单位： | 1. 中国电器科学研究院有限公司,广州 5103002. 广州擎天材料科技有限公司,广州 510860 |
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| 基金项目： | 广东省重点实验室建设项目(2017B030314105) |
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| 摘 要： | 使用紫外光人工加速老化的方法研究了聚酯粉末涂料的老化过程,通过扫描电子显微镜(SEM)、能谱分析(EDS)、X射线光电子能谱分析(XPS)和红外光谱跟踪涂层老化过程羰基指数的变化,研究了聚酯粉末涂料在老化过程中涂层的形貌改变以及基团变化,探讨涂层老化的机理。测试结果表明:聚酯粉末涂层在紫外光、氧气、水分和温度的共同作用下发生剧烈的光氧化反应,C1s分峰拟合结果显示聚酯粉末涂层的C—C、C—H和C—O发生光氧化反应氧化生成了更多的C=O。
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| 关 键 词： | 聚酯 粉末涂料 紫外光老化 人工加速老化 老化机理 |
| 收稿时间： | 2018-02-12 |
Study on UV Accelerated Aging Process of Polyester Powder Coatings |
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| Ma Zhiping,Xie Jing,Liu Liang,Li Yong. Study on UV Accelerated Aging Process of Polyester Powder Coatings[J]. Paint & Coatings Industry, 2018, 48(4): 52-57. DOI: 10.12020/j.issn.0253-4312.2018.4.52 |
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| Authors: | Ma Zhiping Xie Jing Liu Liang Li Yong |
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| Affiliation: | China National Electric Apparatus Research Institute Co.,Ltd.,Guangzhou,510300,China Guangzhou Kinte Material Technology Co.,Ltd.,Guangzhou,510860,China |
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| Abstract: | The aging process of the polyester powder coatings was studied by using UV accelerated aging in this paper. Different test techniques such as SEM, EDS, XPS and FT-IR were used to study the morphology change and group change of the polyester powder coatings during aging. The mechanism of the coating aging was also discussed. The test results showed that the polyester powder coatings had a strong photooxidation under the synergic action of ultraviolet light, oxygen, moisture and temperature. In addition, C—C, C—H and C—O of polyester powder coatings were oxidized to generate more C=O. |
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| Keywords: | polyester powder coating UV aging aging mechanism |
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